Aircraft Structural Monitoring System

8/12/2019 Aircraft Structural Monitoring System

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Designing an aircraftstructural health monitoring

system

2011-2012


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Structural health monitoring: A process of diagnosis and

monitoring condition of structuresnormally performed during anyoperation under various conditions.

A process of follow-up over changesin the condition of a structure.


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In Aerospace Applications..

A process of evaluating the integrityof targeted structural elements with the

goals to provide maintenance andownership benefits.

Damage Monitoring

Operational Monitoring


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law! aultDetection and

"ocation

law! ault#dentificatio

n

law! ault Assessmentlaw! aultMonitoring

$emaining"ifetime

%valuation!ailure

&rediction

Main Objectives of SHM


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Benefits for the present aviation industry

More efficient and effective maintenance Procedures with

substantially reduced downtime.

Substantial time savings approx by 4 ! to inspect structures

which are in difficult to access areas or in remote locations.

"ncreased Occupational health and safety benefits in

accessing structures

Provide the operator with information as to possible safefurther operation subse#uent to a mishap.

"mproved design efficiencies through the availability of

continual monitoring and are more reliable .


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Time BasedMaintenance

Conditionbased

Maintenance


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'o produce a comprehensive specificationsfor a practical development of ()Mdemonstrator by

Ac*uiring #nformation on the design andoperation of ()M systems.

#ndustrial access for practical +nowledge.

Auto,AD

Project Aim


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&rocedureDevelopment

(ensing

Diagnosis

Monitoring

&rediction

SHM Wor ing Process


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!ibre "#tic Sensor

Pie$oelectric transducers

Different equipmentsused in SHM


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est structural elementselection for ()M

application (tudy damagedetection characteristics of

the selected ()Mtechnologies

#dentify current inspectionre*uirements to be

replaced by the selected()M technology

Develop conceptual ()Mapplication to fulfil theidentified inspection

re*uirements

Operational analysis of thedeveloped ()M application

%valuate the ()Mapplication against current

inspection tas+

'echnology maturityassessment

SHM conceptual design process


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Com#onents to #rocess SHM

Operational %valuation

Data Ac*uisition usion and ,leansing

eature %/traction and #nformation

,ondensation

(tatistical-Model Development for eature

Discrimination


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'o nderstanding the mechanism for the crac+ growth

and wor+ing of sensors.

'o gain industrial access.

'o provide a detailed schematic layout of the

e/perimental system.

$esearch on the various ()M systems for critical

aspects.

Project objecti%es


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Final outcome

$eal time health monitoring


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Detect the defects and damage in the structure at si es smaller

than those currently assumed for design and certification

Alert the pilot!operator to in-flight incidents

%nable monitoring of the growth of defects and damage

$educe effective inspection intervals


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Constrains

'o gain industrial contacts.

Mathematical errors increases the

number of e/periments for the proposed

system.


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Aircraft Structural Monitoring System

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